牛犇,孙民华,王丹,王丽娜

• 1:哈尔滨师范大学物理与电子工程学院
• 2:先进功能材料与激发态黑龙江省重点实验室
• 3:牡丹江师范学院物理系

摘要(Abstract)：

采用铜模铸造法制备Cu45Zr42.55Y3.45Al9块体非晶合金,利用三点压弯式粘度仪测定了合金在过冷液区附近的粘度,对合金进行热塑性性能的研究。通过计算得到Cu45Zr42.55Y3.45Al9非晶合金的脆性参数m为31,衡量非晶合金的热塑性加工性能参数m·ΔTr*x为3.1。在与已报道的有很好可塑性的Cu46Zr42Y5Al7非晶合金比较,可知Cu45Zr42.55Y3.45Al9非晶合金有更好的热塑性性能。此外少量Y元素的添加影响了非晶合金的热塑性。

关键词(KeyWords)： 非晶合金;热塑性;粘度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(10947009)

作者(Author): 牛犇,孙民华,王丹,王丽娜

DOI: 10.13289/j.issn.1009-6264.2010.08.005

参考文献(References)：

• [1]Greer A L.Metallic glasses[J].Science,1995,267:1947.
• [2]Johnson W L.Bulk glass-forming metallic alloys:Science and technology[J].MRS Bulletin,1999,24:42-56.
• [3]Inoue A.Stabilization of metallic supercooled liquid and bulk amorphous alloys[J].Acta Materialia,2000,48:279-306.
• [4]LIU Y H,WANG G,WANG R J,et al.Super plastic bulk metallic glasses at room temperature[J].Science,2007,315:1385-1388.
• [5]CHEN L Y,FU Z D,ZHANG G Q,et al.New class of plastic bulk metallic glass[J].Physical Review Letters,2008,100:075501.
• [6]HUANG Y J,SHEN J,SUN J F.Bulk metallic glasses:smaller is softer[J].Applied Physics Letters,2007,90:081919.
• [7]YAO K F,RUAN F,YANG Y Q,et al.Superductile bulk metallic glass[J].Applied Physics Letters,2006,88:122106.
• [8]Schroers J,Johnson W L.Ductile bulk metallic glass[J].Physical Review Letters,2004,93:255506.
• [9]DUAN G,Wiest A,Lind M L,et al.Bulk metallic glass with benchmark thermoplastic processability[J].Advanced Materials,2007,19:4272-4275.
• [10]Kato H,Wada T,Hasegawa M,et al.Fragility and thermal stability of Pt-and Pd-based bulk glass forming liquids and their correlation with deformability[J].Scripta Materialia,2006,54:2023-2027.
• [11]JIA P,GUO H,LI Y,et al.A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility[J].Scripta Materialia,2006,54:2165-2168.
• [12]Park E S,Kim D H.Phase separation and enhancement of plasticity in Cu-Zr-Al-Y bulk metallic glasses[J].Acta Materialia,2006,54:2597-2604.
• [13]SHEN Yong,MA Evan,XU Jian.A group of Cu(Zr)-based BMGs with critical diameter in the range of12to18mm[J].Journal of Materials Science and Technology,2008,24:149-152.
• [14]Hagy H E.Experimental evaluation of beam-bending method of determining glass viscosities in the range108to1015poises[J].American Ceramic Society,1963,46:93-97.
• [15]王丹,张迪,宁潜艳,等.Pr60Ni25Al15大块非晶液体的黏度特征和强液体行为[J].中国科学G辑:物理学力学天文学,2008,38:736-743.WANG Dan,ZHANG Di,NING Qian-yan,et al.Viscosity properties and strong liquid behavior of Pr60Ni25Al15bulk metallic glass-forming liquids[J].Science in China Series G:Physics,Mechanics&Astronomy,2008,38:736-743.
• [16]Angell C A.Formation of glasses from liquids and biopolymers[J].Science,1995,267:1924-1935.
• [17]Schroers J.The superplastic forming of bulk metallic glasses[J].Journal of the Minerals,Metals and Materials Society,2005,57,35-39.
• [18]Yamasaki T,Maeda S,Yokoyama Y,et al.Viscosity measurements of Zr55Cu30Al10Ni5supercooled liquid alloys by using penetration viscometer under high-speed heating conditions[J].Intermetallics,2006,14:1102-1106.
• [19]LU Z P,LIU C T.A new glass-forming ability criterion for bulk metallic glasses[J].Acta Materialia,2002,50:3501-3512.
• [20]XU D H,DUAN G,Johnson W L.Unusual glass-forming ability of bulk amorphous alloys based on ordinary metal copper[J].Physical Review Letters,2004,92:245504.

文章评论(Comment)：